A firm plans to begin production of a new small appliance. The manager must decide whether to purchase the motors for the appliance from a vendor at $7 each or to produce them in-house. Either of two processes could be used for in-house production; one would have an annual fixed cost of $166,718 and a variable cost of $5 per unit, and the other would have an annual fixed cost of $197,209 and a variable cost of $4 per unit. Determine the range of annual volume for which each of the alternatives would be best.(Round your answer to the nearest whole number.)
For annual volume less than(________), (purchase from the vendor / purchase from the vendor production in house at $4 per unit / production in house at $5 per unit) is best. For larger quantities, best to produce in house at $(______) per unit.